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Cardiovascular Drugs Quiz

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Questions and Answers

What do positive inotropic drugs do?

Increase heart rate by altering impulse formation at the SA node

Decrease the conduction of electrical impulses

Increase the force of myocardial contraction (correct)

Decrease the force of myocardial contraction

What is the effect of negative chronotropic drugs?

Decrease the conduction of electrical impulses

Increase heart rate by altering impulse formation at the SA node

Decrease heart rate by altering impulse formation at the SA node (correct)

Increase the force of myocardial contraction

What is the primary effect of catecholamines?

Increase blood glucose levels and decrease heart rate

Increase heart rate and constrict peripheral blood vessels (correct)

Decrease blood glucose levels and increase heart rate

Decrease heart rate and dilate peripheral blood vessels

What do antiarrhythmic drugs aim to correct?

<p>Variation in the normal beating of the heart</p> Signup and view all the answers

What is quinidine?

<p>An alkaloid obtained from cinchona plants</p> Signup and view all the answers

Study Notes

Cardiac Medications

Positive inotropic drugs: Increase the force of contraction of the heart muscle, resulting in a stronger heartbeat.
Negative chronotropic drugs: Decrease the heart rate, slowing down the heartbeat.
Catecholamines: Have a primary effect of increasing the force and rate of the heartbeat, preparing the body for "fight or flight" responses.
Antiarrhythmic drugs: Aim to correct abnormal heart rhythms, restore a normal heart rhythm and prevent irregular heartbeats.
Quinidine: A type of antiarrhythmic drug, used to treat abnormal heart rhythms, including atrial fibrillation.

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Description

Test your knowledge of cardiovascular drugs with this quiz. Explore the types of cardiac drugs, including positive and negative inotropic drugs, as well as positive and negative chronotropic drugs. Learn about how these drugs affect myocardial contraction and heart rate.